I covered my webcam the day I bought the computer. Anyone hacking it is just going to see a black screen.

I wouldn't do anything differently, because in your scenario, it doesn't matter. If they were going to arrest me or actually do anything, they would've done it already. All the most suspicious things about my online activity were there many years ago. If anything, I look less suspicious these days. I don't have a copy of The Anarchist's Cookbook on this computer, for example.